Ultra-fast voltage comparators for transient waveform analysis
- Los Alamos National Lab., NM (USA)
The time at which an input signal crosses the reference level of a voltage comparator can be used in the analog-to-digital conversion of fast single waveform transients. In such a converter, an array of identical comparators, properly biased, provides stop inputs to a picosecond resolution multistop time digitizer. Each stop represents a point in the voltage-time reconstruction of the measured waveform. A number of state-of-the-art comparators, bipolar and GaAs, have been evaluated for this application to determine the differences in their time propagation as a function of the input signal overdrive and risetime. Normalized data is presented to assist in the correction of a digitizer's measurement errors. A picosecond time resolution measurement system used in the tests is also described.
- DOE Contract Number:
- AC03-76SF00098; W-7405-ENG-36
- OSTI ID:
- 6582065
- Report Number(s):
- CONF-900143--
- Journal Information:
- IEEE Transactions on Nuclear Science (Institute of Electrical and Electronics Engineers); (USA), Journal Name: IEEE Transactions on Nuclear Science (Institute of Electrical and Electronics Engineers); (USA) Vol. 37:2; ISSN 0018-9499; ISSN IETNA
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
426000 -- Engineering-- Components
Electron Devices & Circuits-- (1990-)
99 GENERAL AND MISCELLANEOUS
990200* -- Mathematics & Computers
ANALOG-TO-DIGITAL CONVERTERS
ARSENIC COMPOUNDS
ARSENIDES
ELECTRONIC EQUIPMENT
EQUIPMENT
GALLIUM ARSENIDES
GALLIUM COMPOUNDS
PNICTIDES
RESOLUTION
SEMICONDUCTOR DEVICES
TIME RESOLUTION
TIMING PROPERTIES